diff --git a/contrib/sdk/sources/newlib/libc/include/sys/ksys.h b/contrib/sdk/sources/newlib/libc/include/sys/ksys.h
new file mode 100644
index 0000000000..e209daa36b
--- /dev/null
+++ b/contrib/sdk/sources/newlib/libc/include/sys/ksys.h
@@ -0,0 +1,1391 @@
+/* Copyright (C) KolibriOS team 2004-2021. All rights reserved. */
+/* Distributed under terms of the GNU General Public License    */
+
+/* This file contains basic wrappers over KolibriOS system calls. */
+/* See sysfuncs.txt file for details. */
+
+/*
+ * This file was created with you in mind. Lest you reinvent the wheel.
+ * If for some reason there is not enough wrapper add! I ask you to stick to the same style: snake_case.
+ * Structure names must start with "ksys_" and end with "_t".
+ * All wrappers must start with the "_ksys_" prefix.
+ * I consider it mandatory to place the wrappers in the correct order in the official documentation.
+ * Enjoy writing your code :)
+
+ * Warning! The end of the file is the old definitions of function/structure names.
+ * They are for compatibility... Better not to use them.
+*/
+
+#ifndef _KSYS_H_
+#define _KSYS_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define KOSAPI     static inline
+#define asm_inline __asm__ __volatile__
+
+/*============== General structures ==============*/
+
+#pragma pack(push, 1)
+
+typedef struct {
+    uint8_t blue;
+    uint8_t green;
+    uint8_t red;
+} rgb_t;
+
+typedef union {
+    uint32_t val;
+    struct {
+        uint8_t hour;
+        uint8_t min;
+        uint8_t sec;
+        uint8_t _zero;
+    };
+} ksys_time_t;
+
+typedef union {
+    uint32_t val;
+    struct {
+        uint8_t year;
+        uint8_t month;
+        uint8_t day;
+        uint8_t _zero;
+    };
+} ksys_date_t;
+
+typedef union {
+    uint32_t val;
+    struct {
+        uint16_t x;
+        uint16_t y;
+    };
+} ksys_pos_t;
+
+typedef union ksys_oskey_t {
+    uint32_t val;
+    struct {
+        uint8_t state;
+        uint8_t code;
+        uint8_t ctrl_key;
+    };
+} ksys_oskey_t;
+
+typedef struct {
+    void* data;
+    size_t size;
+} ksys_ufile_t;
+
+typedef struct {
+    uint32_t p00;
+    union {
+        uint64_t p04;
+        struct {
+            uint32_t p04dw;
+            uint32_t p08dw;
+        };
+    };
+    uint32_t p12;
+    union {
+        uint32_t p16;
+        const char* new_name;
+        void* bdfe;
+        void* buf16;
+        const void* cbuf16;
+    };
+    char p20;
+    const char* p21;
+} ksys70_t;
+
+typedef struct {
+    uint32_t status;
+    uint32_t rw_bytes;
+} ksys70_status_t;
+
+typedef struct {
+    uint32_t attributes;
+    uint32_t name_cp;
+    ksys_time_t creation_time;
+    ksys_date_t creation_date;
+    ksys_time_t last_access_time;
+    ksys_date_t last_access_date;
+    ksys_time_t last_modification_time;
+    ksys_date_t last_modification_date;
+    uint64_t size;
+    char name[0];
+} ksys_bdfe_t;
+
+typedef struct {
+    int cpu_usage;                //+0
+    int window_pos_info;          //+4
+    uint16_t reserved1;           //+8
+    char name[12];                //+10
+    int memstart;                 //+22
+    int memused;                  //+26
+    int pid;                      //+30
+    int winx_start;               //+34
+    int winy_start;               //+38
+    int winx_size;                //+42
+    int winy_size;                //+46
+    uint16_t slot_info;           //+50
+    uint16_t reserved2;           //+52
+    int clientx;                  //+54
+    int clienty;                  //+58
+    int clientwidth;              //+62
+    int clientheight;             //+66
+    uint8_t window_state;         //+70
+    uint8_t reserved3[1024 - 71]; //+71
+} ksys_thread_t;
+
+typedef unsigned int ksys_color_t;
+
+typedef struct {
+    ksys_color_t frame_area;
+    ksys_color_t grab_bar;
+    ksys_color_t grab_bar_button;
+    ksys_color_t grab_button_text;
+    ksys_color_t grab_text;
+    ksys_color_t work_area;
+    ksys_color_t work_button;
+    ksys_color_t work_button_text;
+    ksys_color_t work_text;
+    ksys_color_t work_graph;
+} ksys_colors_table_t;
+
+typedef struct {
+    unsigned pid;     // PID of sending thread
+    unsigned datalen; // data bytes
+    char* data;       // data begin
+} ksys_ipc_msg;
+
+typedef struct {
+    unsigned lock;      // nonzero is locked
+    unsigned used;      // used bytes in buffer
+    ksys_ipc_msg* data; // data begin
+} ksys_ipc_buffer;
+
+typedef struct {
+    char* func_name;
+    void* func_ptr;
+} ksys_dll_t;
+
+typedef unsigned ksys_drv_hand_t;
+
+typedef struct {
+    ksys_drv_hand_t handler;
+    unsigned func_num;
+    void* in_data_ptr;
+    unsigned in_data_size;
+    void* out_data_ptr;
+    unsigned out_data_size;
+} ksys_ioctl_t;
+
+typedef struct {
+    char key[64];
+    char path[64];
+} ksys_dir_key_t;
+
+#pragma pack(pop)
+
+typedef rgb_t ksys_bitmap_t;
+
+enum KSYS_FS_ERRORS {
+    KSYS_FS_ERR_SUCCESS = 0, // Success
+    KSYS_FS_ERR_1 = 1,       // Base and/or partition of a hard disk is not defined (fn21.7 & fn21.8)
+    KSYS_FS_ERR_2 = 2,       // Function is not supported for the given file system
+    KSYS_FS_ERR_3 = 3,       // Unknown file system
+    KSYS_FS_ERR_4 = 4,       // Reserved, is never returned in the current implementation
+    KSYS_FS_ERR_5 = 5,       // File not found
+    KSYS_FS_ERR_EOF = 6,     // End of file, EOF
+    KSYS_FS_ERR_7 = 7,       // Pointer lies outside of application memory
+    KSYS_FS_ERR_8 = 8,       // Disk is full
+    KSYS_FS_ERR_9 = 9,       // FAT table is destroyed
+    KSYS_FS_ERR_10 = 10,     // Access denied
+    KSYS_FS_ERR_11 = 11      // Device error
+};
+
+enum KSYS_EVENTS {
+    KSYS_EVENT_NONE = 0,     /* Event queue is empty */
+    KSYS_EVENT_REDRAW = 1,   /* Window and window elements should be redrawn */
+    KSYS_EVENT_KEY = 2,      /* A key on the keyboard was pressed */
+    KSYS_EVENT_BUTTON = 3,   /* A button was clicked with the mouse */
+    KSYS_EVENT_DESKTOP = 5,  /* Desktop redraw finished */
+    KSYS_EVENT_MOUSE = 6,    /* Mouse activity (movement, button press) was detected */
+    KSYS_EVENT_IPC = 7,      /* Interprocess communication notify */
+    KSYS_EVENT_NETWORK = 8,  /* Network event */
+    KSYS_EVENT_DEBUG = 9,    /* Debug subsystem event */
+    KSYS_EVENT_IRQBEGIN = 16 /* 16..31 IRQ0..IRQ15 interrupt =IRQBEGIN+IRQn */
+};
+
+enum KSYS_FILE_ENCODING {
+    KSYS_FILE_CP866 = 1,
+    KSYS_FILE_UTF16LE = 2,
+    KSYS_FILE_UTF8 = 3
+};
+
+enum KSYS_TITLE_ENCODING {
+    KSYS_TITLE_CP866 = 1,
+    KSYS_TITLE_UTF16LE = 2,
+    KSYS_TITLE_UTF8 = 3
+};
+
+KOSAPI int __strcmp(const char* s1, const char* s2)
+{
+    while ((*s1) && (*s1 == *s2)) {
+        ++s1;
+        ++s2;
+    }
+    return (*(unsigned char*)s1 - *(unsigned char*)s2);
+}
+
+/* ####################################################################### */
+/* ############### С wrappers for system calls Kolibri OS ################ */
+/* ####################################################################### */
+
+/*=============== Function -1 - terminate thread/process ===============*/
+
+KOSAPI void _ksys_exit(void)
+{
+    asm_inline("int $0x40" ::"a"(-1));
+}
+
+/*============== Function 0 - define and draw the window. ==============*/
+
+KOSAPI void _ksys_create_window(uint32_t x, uint32_t y, uint32_t w, uint32_t h, const char* name, ksys_color_t workcolor, uint32_t style)
+{
+    asm_inline(
+        "int $0x40" ::"a"(0),
+        "b"((x << 16) | ((w - 1) & 0xFFFF)),
+        "c"((y << 16) | ((h - 1) & 0xFFFF)),
+        "d"((style << 24) | (workcolor & 0xFFFFFF)),
+        "D"(name),
+        "S"(0)
+        : "memory");
+}
+
+/*================ Function 1 - put pixel in the window. ===============*/
+
+KOSAPI void _ksys_draw_pixel(uint32_t x, uint32_t y, ksys_color_t color)
+{
+    asm_inline(
+        "int $0x40" ::"a"(1), "b"(x), "c"(y), "d"(color));
+}
+
+/*============ Function 2 - get the code of the pressed key. ===========*/
+
+KOSAPI ksys_oskey_t _ksys_get_key(void)
+{
+    ksys_oskey_t val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(2));
+    return val;
+}
+
+/*==================== Function 3 - get system time. ===================*/
+
+KOSAPI ksys_time_t _ksys_get_time(void)
+{
+    ksys_time_t c_time;
+    asm_inline(
+        "int $0x40"
+        : "=a"(c_time)
+        : "a"(3)
+        : "memory");
+    return c_time;
+}
+
+/*=================== Function 4 - draw text string. ===================*/
+KOSAPI void _ksys_draw_text(const char* text, uint32_t x, uint32_t y, uint32_t len, ksys_color_t color)
+{
+    asm_inline(
+        "int $0x40" ::"a"(4), "d"(text),
+        "b"((x << 16) | y),
+        "S"(len), "c"(color)
+        : "memory");
+}
+
+/*========================= Function 5 - delay. ========================*/
+
+KOSAPI void _ksys_delay(uint32_t time)
+{
+    asm_inline(
+        "int $0x40" ::"a"(5), "b"(time)
+        : "memory");
+}
+
+/*=============== Function 7 - draw image in the window. ===============*/
+
+KOSAPI void _ksys_draw_bitmap(void* bitmap, int x, int y, int w, int h)
+{
+    asm_inline(
+        "int $0x40" ::"a"(7), "b"(bitmap),
+        "c"((w << 16) | h),
+        "d"((x << 16) | y)
+        : "memory");
+}
+
+/*=============== Function 8 - define/delete the button. ===============*/
+
+KOSAPI void _ksys_define_button(uint32_t x, uint32_t y, uint32_t w, uint32_t h, uint32_t id, ksys_color_t color)
+{
+    asm_inline(
+        "int $0x40" ::"a"(8),
+        "b"((x << 16) + w),
+        "c"((y << 16) + h),
+        "d"(id),
+        "S"(color));
+};
+
+KOSAPI void _ksys_delete_button(uint32_t id)
+{
+    asm_inline(
+        "int $0x40" ::"a"(8), "d"(id & 0x00FFFFFF | 0x80000000));
+}
+
+/*============ Function 9 - information on execution thread. ===========*/
+
+KOSAPI int _ksys_thread_info(ksys_thread_t* table, int slot)
+{
+    int val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(9), "b"(table), "c"(slot)
+        : "memory");
+    return val;
+}
+
+/*==================== Function 10 - wait for event. ===================*/
+
+KOSAPI uint32_t _ksys_wait_event(void)
+{
+    uint32_t val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(10));
+    return val;
+}
+
+/*=============== Function 11 - check for event, no wait. ==============*/
+
+KOSAPI uint32_t _ksys_check_event(void)
+{
+    uint32_t val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(11));
+    return val;
+}
+
+/*=============== Function 12 - begin/end window redraw. ===============*/
+
+KOSAPI void _ksys_start_draw(void)
+{
+    asm_inline("int $0x40" ::"a"(12), "b"(1));
+}
+
+KOSAPI void _ksys_end_draw(void)
+{
+    asm_inline("int $0x40" ::"a"(12), "b"(2));
+}
+
+/*============ Function 13 - draw a rectangle in the window. ===========*/
+
+KOSAPI void _ksys_draw_bar(uint32_t x, uint32_t y, uint32_t w, uint32_t h, ksys_color_t color)
+{
+    asm_inline(
+        "int $0x40" ::"a"(13), "d"(color),
+        "b"((x << 16) | w),
+        "c"((y << 16) | h));
+}
+
+/*=================== Function 14 - get screen size. ===================*/
+
+KOSAPI ksys_pos_t _ksys_screen_size(void)
+{
+    ksys_pos_t size;
+    ksys_pos_t size_tmp;
+    asm_inline(
+        "int $0x40"
+        : "=a"(size_tmp)
+        : "a"(14));
+    size.x = size_tmp.y;
+    size.y = size_tmp.x;
+    return size;
+}
+
+/*== Function 15, subfunction 1 - set a size of the background image. ==*/
+
+KOSAPI void _ksys_bg_set_size(uint32_t w, uint32_t h)
+{
+    asm_inline(
+        "int $0x40" ::"a"(15), "b"(1), "c"(w), "d"(h));
+}
+
+/*=== Function 15, subfunction 2 - put pixel on the background image. ==*/
+
+KOSAPI void _ksys_bg_put_pixel(uint32_t x, uint32_t y, uint32_t w, ksys_color_t color)
+{
+    asm_inline(
+        "int $0x40" ::"a"(15), "b"(2), "c"((x + y * w) * 3), "d"(color));
+}
+
+/*=========== Function 15, subfunction 3 - redraw background. ==========*/
+
+KOSAPI void _ksys_bg_redraw(void)
+{
+    asm_inline(
+        "int $0x40" ::"a"(15), "b"(3));
+}
+
+/*== Function 15, subfunction 4 - set drawing mode for the background. =*/
+
+enum KSYS_BG_MODES {
+    KSYS_BG_MODE_PAVE = 1,
+    KSYS_BG_MODE_STRETCH = 2
+};
+
+KOSAPI void _ksys_bg_set_mode(uint32_t mode)
+{
+    asm_inline(
+        "int $0x40" ::"a"(15), "b"(4), "c"(mode));
+}
+
+/*===================== Function 15, subfunction 5 =====================*/
+/*============ Put block of pixels on the background image. ============*/
+
+KOSAPI void _ksys_bg_put_bitmap(ksys_bitmap_t* bitmap, size_t bitmap_size, uint32_t x, uint32_t y, uint32_t w)
+{
+    asm_inline(
+        "int $0x40" ::"a"(15), "b"(5), "c"(bitmap), "d"((x + y * w) * 3), "S"(bitmap_size));
+}
+
+/*===================== Function 15, subfunction 6 =====================*/
+/*======= Map background data to the address space of process. ==========*/
+
+KOSAPI ksys_bitmap_t* _ksys_bg_get_map(void)
+{
+    ksys_bitmap_t* bitmap;
+    asm_inline(
+        "int $0x40"
+        : "=a"(bitmap)
+        : "a"(15), "b"(6));
+    return bitmap;
+}
+
+/*===== Function 15, subfunction 7 - close mapped background data. =====*/
+
+KOSAPI int _ksys_bg_close_map(ksys_bitmap_t* bitmap)
+{
+    int status; // 1 - OK, 0 - ERROR
+    asm_inline(
+        "int $0x40"
+        : "=a"(status)
+        : "a"(15), "b"(7), "c"(bitmap));
+    return status;
+}
+
+/*===================== Function 15, subfunction 9 =====================*/
+/*============= Redraws a rectangular part of the background ===========*/
+
+KOSAPI void _ksys_bg_redraw_bar(ksys_pos_t angle1, ksys_pos_t angle2)
+{
+    asm_inline(
+        "int $0x40" ::"a"(15), "b"(9),
+        "c"(angle1.x * (1 << 16) + angle2.x),
+        "d"(angle1.y * (1 << 16) + angle2.y));
+}
+
+/*=============== Function 16 - save ramdisk on a floppy. ==============*/
+
+KOSAPI int _ksys_save_ramdisk_fd(uint32_t floppy_id)
+{
+    int status; // 0 - OK, 1 - ERROR
+    asm_inline(
+        "int $0x40"
+        : "=a"(status)
+        : "a"(16), "b"(floppy_id));
+    return status;
+}
+
+/*======= Function 17 - get the identifier of the pressed button. ======*/
+
+KOSAPI uint32_t _ksys_get_button(void)
+{
+    unsigned val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(17));
+    return val >> 8;
+}
+
+/*===================== Function 18, subfunction 1 =====================*/
+/*============= Make deactive the window of the given thread. ==========*/
+
+KOSAPI void _ksys_unfocus_window(int slot)
+{
+    asm_inline(
+        "int $0x40" ::"a"(18), "b"(1), "c"(slot));
+}
+
+/*= Function 18, subfunction 2 - terminate process/thread by the slot. =*/
+
+KOSAPI void _ksys_kill_by_slot(int slot)
+{
+    asm_inline(
+        "int $0x40" ::"a"(18), "b"(2), "c"(slot));
+}
+
+/*===================== Function 18, subfunction 3 =====================*/
+/*============= Make active the window of the given thread. ============*/
+
+KOSAPI void _ksys_focus_window(int slot)
+{
+    asm_inline(
+        "int $0x40" ::"a"(18), "b"(3), "c"(slot));
+}
+
+/*===================== Function 18, subfunction 4 =====================*/
+/*=========== Get counter of idle time units per one second. ===========*/
+
+KOSAPI uint32_t _ksys_get_idle(void)
+{
+    uint32_t sec;
+    asm_inline(
+        "int $0x40"
+        : "=a"(sec)
+        : "a"(18), "b"(4));
+    return sec;
+}
+
+/*========== Function 18, subfunction 5 - get CPU clock rate. ==========*/
+/*================ modulo 2^32 clock ticks = 4GHz ======================*/
+
+KOSAPI uint32_t _ksys_get_cpu_clock(void)
+{
+    uint32_t clock;
+    asm_inline(
+        "int $0x40"
+        : "=a"(clock)
+        : "a"(18), "b"(5));
+    return clock;
+}
+
+/* Function 18, subfunction 6 - save ramdisk to the file on hard drive. */
+
+KOSAPI uint32_t _ksys_save_ramdisk_hd(const char* ramdisk_path)
+{
+    uint32_t fs_err;
+    asm_inline(
+        "int $0x40"
+        : "=a"(fs_err)
+        : "a"(18), "b"(6), "c"(ramdisk_path));
+    return fs_err;
+}
+
+/* Function 18, subfunction 9 - system shutdown with the parameter. */
+
+enum KSYS_SHD_PARAM {
+    KSYS_SHD_POWEROFF = 2,
+    KSYS_SHD_REBOOT = 3,
+    KSYS_SHD_RESTART_KRN = 4
+};
+
+KOSAPI void _ksys_shutdown(uint32_t shd_param)
+{
+    asm_inline(
+        "int $0x40" ::"a"(18), "b"(9), "c"(shd_param));
+}
+
+/*========= Function 18, subfunction 16 - get size of free RAM. ========*/
+
+KOSAPI size_t _ksys_get_ram_size(void)
+{
+    size_t size;
+    asm_inline(
+        "int $0x40"
+        : "=a"(size)
+        : "a"(18), "b"(16));
+    return size;
+}
+
+/*======== Function 18, subfunction 17 - get full amount of RAM. =======*/
+
+KOSAPI size_t _ksys_get_full_ram(void)
+{
+    size_t size;
+    asm_inline(
+        "int $0x40"
+        : "=a"(size)
+        : "a"(18), "b"(17));
+    return size;
+}
+
+/*===================== Function 18, subfunction 18 ====================*/
+/*============= Terminate process/thread by the identifier. ============*/
+
+KOSAPI void _ksys_kill_by_pid(uint32_t PID)
+{
+    asm_inline("int $0x40" ::"a"(18), "b"(18), "c"(PID));
+}
+
+/*========= Fuction 18, subfunction 19 - get/set mouse settings. ========*/
+
+KOSAPI void _ksys_set_mouse_pos(int x, int y) // sub-subfunction 4 - set the position of the mouse cursor
+{
+    asm_inline("int $0x40" ::"a"(18), "b"(19), "c"(4), "d"(x * 65536 + y));
+}
+
+/*===================== Function 18, subfunction 21 ====================*/
+/*=====Get the slot number of the process / thread by identifier.. =====*/
+
+KOSAPI int _ksys_get_thread_slot(int PID)
+{
+    int val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(18), "b"(21), "c"(PID));
+    return val;
+}
+
+/*============= Function 23 - wait for event with timeout. =============*/
+
+KOSAPI uint32_t _ksys_wait_event_timeout(uint32_t timeout)
+{
+    unsigned val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(23), "b"(timeout));
+    return val;
+}
+
+/*=== Function 26, subfunction 9 - get the value of the time counter. ==*/
+
+KOSAPI uint32_t _ksys_get_tick_count(void)
+{
+    unsigned val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(26), "b"(9));
+    return val;
+}
+
+/*===================== Function 26, subfunction 10 ====================*/
+/*========== Get the value of the high precision time counter. =========*/
+
+KOSAPI uint64_t _ksys_get_ns_count(void)
+{
+    uint64_t val;
+    asm_inline(
+        "int $0x40"
+        : "=A"(val)
+        : "a"(26), "b"(10));
+    return val;
+}
+
+/*=================== Function 29 - get system date. ===================*/
+
+KOSAPI ksys_date_t _ksys_get_date(void)
+{
+    ksys_date_t val;
+    asm_inline("int $0x40"
+               : "=a"(val)
+               : "a"(29));
+    return val;
+}
+
+/*===========+ Function 30 - work with the current folder.==============*/
+/*--------- Subfunction 1 - set current folder for the thread. ---------*/
+
+KOSAPI void _ksys_setcwd(char* dir)
+{
+    asm_inline(
+        "int $0x40" ::"a"(30), "b"(1), "c"(dir));
+}
+
+/*--------- Subfunction 2 - get current folder for the thread. ---------*/
+
+KOSAPI int _ksys_getcwd(char* buf, int bufsize)
+{
+    register int val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(30), "b"(2), "c"(buf), "d"(bufsize));
+    return val;
+}
+
+/* ---- Subfunction 3 - install the add.system directory for the kernel ------*/
+
+KOSAPI int _ksys_set_kernel_dir(ksys_dir_key_t* table)
+{
+    register int val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(30), "b"(3), "c"(table)
+        : "memory");
+    return val;
+}
+
+/*=================== Function 37 - work with mouse. ===================*/
+
+enum KSYS_MOUSE_POS {
+    KSYS_MOUSE_SCREEN_POS = 0,
+    KSYS_MOUSE_WINDOW_POS = 1
+};
+
+KOSAPI ksys_pos_t _ksys_get_mouse_pos(int origin)
+{
+    ksys_pos_t pos;
+    asm_inline(
+        "int $0x40 \n\t"
+        "rol $16, %%eax"
+        : "=a"(pos)
+        : "a"(37), "b"(origin));
+    return pos;
+}
+
+KOSAPI uint32_t _ksys_get_mouse_buttons(void) // subfunction 2 - states of the mouse buttons
+{
+    uint32_t val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(37), "b"(2));
+    return val;
+}
+
+KOSAPI uint32_t _ksys_get_mouse_eventstate(void) // subfunction 3 - states and events of the mouse buttons
+{
+    uint32_t val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(37), "b"(3));
+    return val;
+}
+
+enum KSYS_CURSOR_SRC {
+    KSYS_CURSOR_FROM_FILE = 0,
+    KSYS_CURSOR_FROM_MEM = 1,
+    KSYS_CURSOR_INDIRECT = 2
+};
+
+KOSAPI void* _ksys_load_cursor(void* path, uint32_t flags) // subfunction 4 - load cursor
+{
+    uint32_t val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(37), "b"(4), "c"(path), "d"(flags)
+        : "memory");
+    return val;
+}
+
+KOSAPI void* _ksys_set_cursor(void* cursor) // subfunction 5 - set cursor
+{
+    uint32_t old;
+    asm_inline(
+        "int $0x40"
+        : "=a"(old)
+        : "a"(37), "b"(5), "c"(cursor));
+    return old;
+}
+
+KOSAPI int _ksys_delete_cursor(void* cursor) // subfunction 6 - delete cursor
+{
+    int ret;
+    asm_inline(
+        "int $0x40"
+        : "=a"(ret)
+        : "a"(37), "b"(6), "c"(cursor)
+        : "memory");
+    return ret;
+}
+
+KOSAPI uint32_t _ksys_get_mouse_wheels(void) // subfunction 7 - get scroll data
+{
+    uint32_t val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(37), "b"(7));
+    return val;
+}
+
+/*=========== Function 40 - set the mask for expected events. ==========*/
+
+enum KSYS_EVENT_MASK {
+    KSYS_EVM_REDRAW = 1,
+    KSYS_EVM_KEY = 2,
+    KSYS_EVM_BUTTON = 4,
+    KSYS_EVM_EXIT = 8,
+    KSYS_EVM_BACKGROUND = 16,
+    KSYS_EVM_MOUSE = 32,
+    KSYS_EVM_IPC = 64,
+    KSYS_EVM_STACK = 128,
+    KSYS_EVM_DEBUG = 256,
+    KSYS_EVM_STACK2 = 512,
+    KSYS_EVM_MOUSE_FILTER = 0x80000000,
+    KSYS_EVM_CURSOR_FILTER = 0x40000000,
+};
+
+KOSAPI uint32_t _ksys_set_event_mask(uint32_t mask)
+{
+    unsigned val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(40), "b"(mask));
+    return val;
+}
+
+/*====================== Function 38 - draw line. ======================*/
+
+KOSAPI void _ksys_draw_line(int xs, int ys, int xe, int ye, ksys_color_t color)
+{
+    asm_inline(
+        "int $0x40" ::"a"(38), "d"(color),
+        "b"((xs << 16) | xe),
+        "c"((ys << 16) | ye));
+}
+
+/*============= Function 47 - draw a number in the window. =============*/
+
+KOSAPI void _ksys_draw_number(int number, int x, int y, int len, ksys_color_t color)
+{
+    unsigned fmt;
+    fmt = len << 16 | 0x80000000; // no leading zeros + width
+    asm_inline(
+        "int $0x40" ::"a"(47), "b"(fmt), "c"(number), "d"((x << 16) | y), "S"(color));
+}
+
+KOSAPI void _ksys_draw_number_bg(unsigned number, int x, int y, int len, ksys_color_t color, ksys_color_t bg)
+{
+    unsigned fmt;
+    fmt = len << 16 | 0x80000000; // no leading zeros + width
+    asm_inline(
+        "int $0x40" ::"a"(47), "b"(fmt), "c"(number), "d"((x << 16) | y), "S"(color), "D"(bg));
+}
+
+/*====== Function 48, subfunction 3 - get standard window colors. ======*/
+
+KOSAPI void _ksys_get_system_colors(ksys_colors_table_t* color_table)
+{
+    asm_inline(
+        "int $0x40" ::"a"(48), "b"(3), "c"(color_table), "d"(40));
+}
+
+/*============ Function 48, subfunction 4 - get skin height. ===========*/
+
+KOSAPI uint32_t _ksys_get_skin_height()
+{
+    unsigned height;
+    asm_inline(
+        "int $0x40"
+        : "=a"(height)
+        : "a"(48), "b"(4));
+    return height;
+}
+
+/*==================== Function 51 - create thread. ====================*/
+
+KOSAPI int _ksys_create_thread(void* thread_entry, void* stack_top)
+{
+    int val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(51), "b"(1), "c"(thread_entry), "d"(stack_top)
+        : "memory");
+    return val;
+}
+
+/*==================== Function 54, subfunction 0 ======================*/
+/*============== Get the number of slots in the clipboard. =============*/
+
+enum KSYS_CLIP_ENCODING {
+    KSYS_CLIP_UTF8 = 0,
+    KSYS_CLIP_CP866 = 1,
+    KSYS_CLIP_CP1251 = 2
+};
+
+enum KSYS_CLIP_TYPES {
+    KSYS_CLIP_TEXT = 0,
+    KSYS_CLIP_IMAGE = 1,
+    KSYS_CLIP_RAW = 2
+};
+
+KOSAPI int _ksys_clip_num(void)
+{
+    unsigned val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(54), "b"(0));
+    return val;
+}
+
+/*==================== Function 54, subfunction 1 ======================*/
+/*================= Read the data from the clipboard. ==================-*/
+
+KOSAPI char* _ksys_clip_get(int n) // returned buffer must be freed by _ksys_free()
+{
+    char* val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(54), "b"(1), "c"(n));
+    return val;
+}
+
+/*==================== Function 54, subfunction 2 ======================*/
+/*================= Write the data to the clipboard. ===================*/
+
+KOSAPI int _ksys_clip_set(int n, char* buffer)
+{
+    unsigned val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(54), "b"(2), "c"(n), "d"(buffer)
+        : "memory");
+    return val;
+}
+
+/*===================== Function 54, subfunction 3 =====================*/
+/*================ Delete the last slot in the clipboard ===============*/
+
+KOSAPI int _ksys_clip_pop()
+{
+    unsigned val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(54), "b"(3));
+    return val;
+}
+
+/*===================== Function 54, subfunction 4 =====================*/
+/*===================== Alarm reset the lock buffer ====================*/
+
+KOSAPI int _ksys_clip_unlock()
+{
+    unsigned val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(54), "b"(4));
+    return val;
+}
+
+/*============== Function 63 - work with the debug board. ==============*/
+
+KOSAPI void _ksys_debug_putc(char c)
+{
+    asm_inline("int $0x40" ::"a"(63), "b"(1), "c"(c));
+}
+
+KOSAPI void _ksys_debug_puts(const char* s)
+{
+    unsigned i = 0;
+    while (*(s + i)) {
+        asm_inline("int $0x40" ::"a"(63), "b"(1), "c"(*(s + i)));
+        i++;
+    }
+}
+
+/*========= Function 66, subfunction 1 - set keyboard input mode. ==============*/
+
+typedef enum KSYS_KEY_INPUT_MODE {
+    KSYS_KEY_INPUT_MODE_ASCII = 0,
+    KSYS_KEY_INPUT_MODE_SCANC = 1,
+} ksys_key_input_mode_t;
+
+KOSAPI void _ksys_set_key_input_mode(ksys_key_input_mode_t mode)
+{
+    asm_inline(
+        "int $0x40" ::"a"(66), "b"(1), "c"(mode));
+}
+
+/*========= Function 67 - change position/sizes of the window. =========*/
+
+KOSAPI void _ksys_change_window(int new_x, int new_y, int new_w, int new_h)
+{
+    asm_inline(
+        "int $0x40" ::"a"(67), "b"(new_x), "c"(new_y), "d"(new_w), "S"(new_h));
+}
+
+/*======== Function 68, subfunction 12 - allocate memory block. ========*/
+
+KOSAPI void* _ksys_alloc(size_t size)
+{
+    void* val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(68), "b"(12), "c"(size));
+    return val;
+}
+
+/*========== Function 68, subfunction 13 - free memory block. ==========*/
+
+KOSAPI int _ksys_free(void* mem)
+{
+    int val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(68), "b"(13), "c"(mem));
+    return val;
+}
+
+/*============= Function 68, subfunction 16 - load driver. =============*/
+
+KOSAPI ksys_drv_hand_t _ksys_load_driver(char* driver_name)
+{
+    ksys_drv_hand_t driver_h;
+    asm_inline(
+        "int $0x40"
+        : "=a"(driver_h)
+        : "a"(68), "b"(16), "c"(driver_name));
+    return driver_h;
+}
+
+/*============ Function 68, subfunction 17 - driver control. ===========*/
+
+KOSAPI int _ksys_driver_control(ksys_ioctl_t* ioctl)
+{
+    int status;
+    asm_inline(
+        "int $0x40"
+        : "=a"(status)
+        : "a"(68), "b"(17), "c"(ioctl)
+        : "memory");
+    return status;
+}
+
+/*== Function 68, subfunction 18 - subfunction 19 - load DLL (MS COFF) ==*/
+
+KOSAPI ksys_dll_t* _ksys_dlopen(const char* path)
+{
+    ksys_dll_t* table;
+    asm_inline(
+        "int $0x40"
+        : "=a"(table)
+        : "a"(68), "b"(19), "c"(path)
+        : "memory");
+    return table;
+}
+
+/* It is not a system call, it serves as an auxiliary tool*/
+
+KOSAPI void* _ksys_dlsym(ksys_dll_t* table, const char* fun_name)
+{
+    unsigned i = 0;
+    while (1) {
+        if (!(table + i)->func_name) {
+            break;
+        } else {
+            if (!__strcmp(fun_name, (table + i)->func_name)) {
+                return (table + i)->func_ptr;
+            }
+        }
+        i++;
+    }
+    return NULL;
+}
+
+/* Function 68, subfunction 20 - reallocate memory block.*/
+
+KOSAPI void* _ksys_realloc(void* mem, size_t size)
+{
+    void* val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(68), "b"(20), "c"(size), "d"(mem)
+        : "memory");
+    return val;
+}
+
+/* Function 68, subfunction 21 - load driver by full name. */
+
+KOSAPI ksys_drv_hand_t _ksys_load_driver_opt(char* driver_path, char* cmd_line)
+{
+    ksys_drv_hand_t driver_h;
+    asm_inline(
+        "int $0x40"
+        : "=a"(driver_h)
+        : "a"(68), "b"(21), "c"(driver_path), "d"(cmd_line));
+    return driver_h;
+}
+
+/*======== Function 68, subfunction 22 - open named memory area. =======*/
+
+enum KSYS_SHM_MODE {
+    KSYS_SHM_OPEN = 0x00,
+    KSYS_SHM_OPEN_ALWAYS = 0x04,
+    KSYS_SHM_CREATE = 0x08,
+    KSYS_SHM_READ = 0x00,
+    KSYS_SHM_WRITE = 0x01,
+};
+
+KOSAPI int _ksys_shm_open(char* name, int mode, int size, char** new_shm)
+{
+    int error;
+    asm_inline(
+        "int $0x40"
+        : "=a"(*new_shm), "=d"(error)
+        : "a"(68), "b"(22), "c"(name), "d"(size), "S"(mode));
+    return error;
+}
+
+/*======= Function 68, subfunction 23 - close named memory area. =======*/
+
+KOSAPI void _ksys_shm_close(char* shm_name)
+{
+    asm_inline(
+        "int $0x40"
+        :
+        : "a"(68), "b"(23), "c"(shm_name));
+}
+
+/*====== Function 68, subfunction 26 - release memory pages ============*/
+
+KOSAPI int* _ksys_unmap(void* base, size_t offset, size_t size)
+{
+    int* val;
+    asm_inline(
+        "int $0x40"
+        : "=a"(val)
+        : "a"(68), "b"(26), "c"(base), "d"(offset), "S"(size));
+    return val;
+}
+
+/*========== Function 68, subfunction 27 - load file ===================*/
+
+KOSAPI ksys_ufile_t _ksys_load_file(const char* path)
+{
+    ksys_ufile_t uf;
+    asm_inline(
+        "int $0x40"
+        : "=a"(uf.data), "=d"(uf.size)
+        : "a"(68), "b"(27), "c"(path)
+        : "memory");
+    return uf;
+}
+
+/*==== Function 68, subfunction 28 - load file, specifying the encoding ===*/
+
+KOSAPI ksys_ufile_t _ksys_load_file_enc(const char* path, unsigned file_encoding)
+{
+    ksys_ufile_t uf;
+    asm_inline(
+        "int $0x40"
+        : "=a"(uf.data), "=d"(uf.size)
+        : "a"(68), "b"(28), "c"(path), "d"(file_encoding)
+        : "memory");
+    return uf;
+}
+
+/*==== Function 70 - work with file system with long names support. ====*/
+
+KOSAPI ksys70_status_t _ksys70(const ksys70_t* k)
+{
+    ksys70_status_t status;
+    asm_inline(
+        "int $0x40"
+        : "=a"(status.status), "=b"(status.rw_bytes)
+        : "a"(70), "b"(k)
+        : "memory");
+    return status;
+}
+
+/*====== Function 70, subfunction 0 - read file with long names support. ======*/
+
+KOSAPI ksys70_status_t _ksys_file_read(const char* name, uint64_t offset, uint32_t size, void* buf)
+{
+    ksys70_t k;
+    k.p00 = 0;
+    k.p04 = offset;
+    k.p12 = size;
+    k.buf16 = buf;
+    k.p20 = 0;
+    k.p21 = name;
+    return _ksys70(&k);
+}
+
+/*===================== Function 70, subfunction 2 =====================*/
+/*============ Create/rewrite file with long names support. ============*/
+
+KOSAPI int _ksys_file_create(const char* name)
+{
+    ksys70_t k;
+    k.p00 = 2;
+    k.p04dw = 0;
+    k.p08dw = 0;
+    k.p12 = 0;
+    k.p21 = name;
+    return _ksys70(&k).status;
+}
+
+/*===================== Function 70, subfunction 3 =====================*/
+/*=========== Write to existing file with long names support. ==========*/
+
+KOSAPI ksys70_status_t _ksys_file_write(const char* name, uint64_t offset, uint32_t size, const void* buf)
+{
+    ksys70_t k;
+    k.p00 = 3;
+    k.p04 = offset;
+    k.p12 = size;
+    k.cbuf16 = buf;
+    k.p20 = 0;
+    k.p21 = name;
+    return _ksys70(&k);
+}
+
+/*========== Function 70, subfunction 5 - get information on file/folder. =====*/
+
+KOSAPI int _ksys_file_info(const char* name, ksys_bdfe_t* bdfe)
+{
+    ksys70_t k;
+    k.p00 = 5;
+    k.p04dw = 0;
+    k.p08dw = 0;
+    k.p12 = 0;
+    k.bdfe = bdfe;
+    k.p20 = 0;
+    k.p21 = name;
+    return _ksys70(&k).status;
+}
+
+#define _ksys_dir_info _ksys_file_info
+
+/*=========== Function 70, subfunction 7 - start application. ===========*/
+
+KOSAPI int _ksys_exec(const char* app_name, char* args)
+{
+    ksys70_t file_opt;
+    file_opt.p00 = 7;
+    file_opt.p04dw = 0;
+    file_opt.p08dw = (uint32_t)args;
+
+    file_opt.p12 = 0;
+    file_opt.p16 = 0;
+    file_opt.p20 = 0;
+
+    file_opt.p21 = app_name;
+    return _ksys70(&file_opt).status;
+}
+
+/*========== Function 70, subfunction 8 - delete file/folder. ==========*/
+
+KOSAPI int _ksys_file_delete(const char* name)
+{
+    ksys70_t k;
+    k.p00 = 8;
+    k.p20 = 0;
+    k.p21 = name;
+    return _ksys70(&k).status;
+}
+
+/*============= Function 70, subfunction 9 - create folder. ============*/
+
+KOSAPI int _ksys_mkdir(const char* path)
+{
+    ksys70_t dir_opt;
+    dir_opt.p00 = 9;
+    dir_opt.p21 = path;
+    return _ksys70(&dir_opt).status;
+}
+
+/*============= Function 70, subfunction 10 - rename/move. =============*/
+
+KOSAPI int _ksys_file_rename(const char* name, const char* new_name)
+{
+    ksys70_t k;
+    k.p00 = 10;
+    k.new_name = new_name;
+    k.p20 = 0;
+    k.p21 = name;
+    return _ksys70(&k).status;
+}
+
+#define _ksys_dir_rename _ksys_file_rename
+
+/*============  Function 71, subfunction 1 - set window title ============= */
+
+KOSAPI void _ksys_set_window_title(const char* title)
+{
+    asm_inline("int $0x40" ::"a"(71), "b"(1), "c"(title)
+               : "memory");
+}
+
+#define _ksys_clear_window_title() _ksys_set_window_title(NULL)
+
+/*============= Function 77 - implements the POSIX subsystem. =============*/
+
+KOSAPI int _ksys_posix_read(int pipefd, void* buff, int n)
+{
+    int count;
+    asm_inline(
+        "int $0x40"
+        : "=a"(count)
+        : "a"(77), "b"(10), "c"(pipefd), "d"(buff), "S"(n)
+        : "memory");
+    return count;
+}
+
+KOSAPI int _ksys_posix_write(int pipefd, void* buff, int n)
+{
+    int count;
+    asm_inline(
+        "int $0x40"
+        : "=a"(count)
+        : "a"(77), "b"(11), "c"(pipefd), "d"(buff), "S"(n)
+        : "memory");
+    return count;
+}
+
+KOSAPI int _ksys_posix_pipe2(int pipefd[2], int flags)
+{
+    int err;
+    asm_inline(
+        "int $0x40"
+        : "=a"(err)
+        : "a"(77), "b"(13), "c"(pipefd), "d"(flags)
+        : "memory");
+    return err;
+}
+
+/* ######### Old names of functions and structures. Do not use again! ##########*/
+
+#define _ksys_get_event     _ksys_wait_event
+#define _ksys_file_get_info _ksys_file_info
+
+static inline int _ksys_file_read_file(const char* name, unsigned long long offset, unsigned size, void* buff, unsigned* bytes_read)
+{
+    ksys70_status_t res = _ksys_file_read(name, offset, size, buff);
+    *bytes_read = res.rw_bytes;
+    return res.status;
+}
+
+static inline int _ksys_file_write_file(const char* name, unsigned long long offset, unsigned size, const void* buff, unsigned* bytes_write)
+{
+    ksys70_status_t res = _ksys_file_write(name, offset, size, buff);
+    *bytes_write = res.rw_bytes;
+    return res.status;
+}
+
+#endif // _KSYS_H_
diff --git a/programs/develop/ktcc/trunk/libc.obj/include/sys/ksys.h b/programs/develop/ktcc/trunk/libc.obj/include/sys/ksys.h
index c378541cfe..e209daa36b 100644
--- a/programs/develop/ktcc/trunk/libc.obj/include/sys/ksys.h
+++ b/programs/develop/ktcc/trunk/libc.obj/include/sys/ksys.h
@@ -224,6 +224,12 @@ enum KSYS_FILE_ENCODING {
     KSYS_FILE_UTF8 = 3
 };
 
+enum KSYS_TITLE_ENCODING {
+    KSYS_TITLE_CP866 = 1,
+    KSYS_TITLE_UTF16LE = 2,
+    KSYS_TITLE_UTF8 = 3
+};
+
 KOSAPI int __strcmp(const char* s1, const char* s2)
 {
     while ((*s1) && (*s1 == *s2)) {
@@ -256,7 +262,7 @@ KOSAPI void _ksys_create_window(uint32_t x, uint32_t y, uint32_t w, uint32_t h,
         "D"(name),
         "S"(0)
         : "memory");
-};
+}
 
 /*================ Function 1 - put pixel in the window. ===============*/
 
@@ -626,8 +632,14 @@ KOSAPI size_t _ksys_get_full_ram(void)
 
 KOSAPI void _ksys_kill_by_pid(uint32_t PID)
 {
-    asm_inline(
-        "int $0x40" ::"a"(18), "b"(18), "c"(PID));
+    asm_inline("int $0x40" ::"a"(18), "b"(18), "c"(PID));
+}
+
+/*========= Fuction 18, subfunction 19 - get/set mouse settings. ========*/
+
+KOSAPI void _ksys_set_mouse_pos(int x, int y) // sub-subfunction 4 - set the position of the mouse cursor
+{
+    asm_inline("int $0x40" ::"a"(18), "b"(19), "c"(4), "d"(x * 65536 + y));
 }
 
 /*===================== Function 18, subfunction 21 ====================*/
@@ -763,7 +775,13 @@ KOSAPI uint32_t _ksys_get_mouse_eventstate(void) // subfunction 3 - states and e
     return val;
 }
 
-KOSAPI uint32_t _ksys_load_cursor(void* path, uint32_t flags) // subfunction 4 - load cursor
+enum KSYS_CURSOR_SRC {
+    KSYS_CURSOR_FROM_FILE = 0,
+    KSYS_CURSOR_FROM_MEM = 1,
+    KSYS_CURSOR_INDIRECT = 2
+};
+
+KOSAPI void* _ksys_load_cursor(void* path, uint32_t flags) // subfunction 4 - load cursor
 {
     uint32_t val;
     asm_inline(
@@ -774,7 +792,7 @@ KOSAPI uint32_t _ksys_load_cursor(void* path, uint32_t flags) // subfunction 4 -
     return val;
 }
 
-KOSAPI uint32_t _ksys_set_cursor(uint32_t cursor) // subfunction 5 - set cursor
+KOSAPI void* _ksys_set_cursor(void* cursor) // subfunction 5 - set cursor
 {
     uint32_t old;
     asm_inline(
@@ -784,7 +802,7 @@ KOSAPI uint32_t _ksys_set_cursor(uint32_t cursor) // subfunction 5 - set cursor
     return old;
 }
 
-KOSAPI int _ksys_delete_cursor(uint32_t cursor) // subfunction 6 - delete cursor
+KOSAPI int _ksys_delete_cursor(void* cursor) // subfunction 6 - delete cursor
 {
     int ret;
     asm_inline(
@@ -1306,6 +1324,16 @@ KOSAPI int _ksys_file_rename(const char* name, const char* new_name)
 
 #define _ksys_dir_rename _ksys_file_rename
 
+/*============  Function 71, subfunction 1 - set window title ============= */
+
+KOSAPI void _ksys_set_window_title(const char* title)
+{
+    asm_inline("int $0x40" ::"a"(71), "b"(1), "c"(title)
+               : "memory");
+}
+
+#define _ksys_clear_window_title() _ksys_set_window_title(NULL)
+
 /*============= Function 77 - implements the POSIX subsystem. =============*/
 
 KOSAPI int _ksys_posix_read(int pipefd, void* buff, int n)